US3996763AExpiredUtility

Refrigerated show case

Assignee: KARASHIMA MASASHIPriority: Dec 20, 1974Filed: Feb 11, 1975Granted: Dec 14, 1976
Est. expiryDec 20, 1994(expired)· nominal 20-yr term from priority
A47F 3/0447
34
PatentIndex Score
6
Cited by
6
References
2
Claims

Abstract

An improved refrigerating show case is disclosed herein, in which a cold air flow is circulated along its bottom wall, rear wall and top wall and across its front opening to refrigerate the interior of said show case, and another cool air flow is circulated outside of and along the circulating route of said cold air flow to prevent said cold air flow from being warmed up. The improvements exist in that a part of said another cool air flow is diverted upwardly from the top wall portion along its circulating route, whereby the tendency that the room temperature above said refrigerating show case is excessively raised and that on the floor just before said refrigerating show case is excessively lowered, can be eliminated.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
       1. A refrigerated showcase comprising: an upright showcase housing having an open front access thereinto and an opening in the top thereof;   first circulating means within said housing for cooling and circulating a flow of air within the bottom, rear and top walls of said housing and across said open front thereinto, whereby the interior of said showcase is cooled;   second circulating means within said housing adjacent said first circulating means for circulating a second flow of air within the bottom, rear and top walls of said housing and across said open front thereinto in front of the air flow of said first circulating means, whereby the air flow of said first circulating means is prohibited from contacting the ambient air outside the front of said housing, said second circulating means further being connected to said opening in the top of said housing; and   diversion means within said second circulating means at the top of said housing for diverting a portion of the air circulating in said second circulation means upward and outward through said opening in the top of said housing, and for limiting the flow of air through said second circulation means, said diversion means being comprised of:   a perforated baffle plate fitted within said second circulation means beneath said opening in the top of said housing, said baffle deflecting a portion of the air flowing through said second circulation means outward through said opening and limiting the flow of air in the second circulation means through the perforations therein.   
     
     
       2. A showcase as claimed in claim 1, wherein said baffle plate perforations reduce the flow of air through said second circulation means by 40%.

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